canning



a Sheets-Sheet 1.

(No Model.)

w. P. GANNING. GRINDING MECHANISM FOR THE FLATS OP TRAVELING FLAT 2 9 00 1 A .L G 0, d 6 b H e b & EP N I G N B G N I D R A G 5 00 5 3 00 4 nm N WITNESSES.

INVENTOR. MbuwQaa m: NORRIS wz'rzas cm, munrunm, wnsmnqron, n, c

(No Model.) 3 Sheets-Sheet 2.

W. P. OANNING.

GRINDING MECHANISM FOR THE FLATS OF TRAVELING FLAT GARDING ENGINES.

No. 483,535. I Patented 001i. 4, 1892.

FIG. 3.

WITNESSES. INVENTOR Ya! mum PETERS cm. mcmmlwa, msmmmn, u. c.

(No ModeL) 3 Sheets-Sheet 3.

W. P. G ANNING. GRINDING MECHANISM EOE TEE FLATS 0P TRAVELING FLAT CARDING ENGINES.

No. 483,585. Patented 001;. 4, 1892.

WITNESSES. INVENTOR.

7H: nevus PLTiRS 00., wo'rwurua. WAsNlNnTDN, n. c.

WILLIAM PITT CANNING, OF LOWV ELL,

PATENT OFFICE.

MASSACHUSETTS, ASSIGNOR TO THE LOWELL MACHINE SHOP, OF SAME PLACE.

GRINDING MECHANISM FOR FLATS OF TRAVELI NG FLAT CARDING-ENGINES.

SPECIFICATION forming part of Letters Patent No. 483,535, dated October 4, 1892.

Application filed June 3, 1892. Serial No. 435,417. (No model.)

To all whom it may concern:

Be it known that LWILLIAM PITT CANNING, a citizen of the United States, residing at Lowell, in the county of Middlesex and Cornmonwealth of Massachusetts, have invented certain new and useful Improvements in Grinding Mechanism for the Flats of Traveling-Flat Carding-Engines, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to the grinding mechanism which is employed in traveling-flat carding-engines for grinding the card-clothed surfaces of the traveling flats, and particularly to mechanism of the character of that which is shown and described in United States patent to Thomas Knowles and Roger Tat-ham, No. 464,029, dated December 1, 1891.

My invention consists in an improved means for supporting with capacity for adjustment the milled seat against which the working faces of the ends of the flats rest in turn while the card-clothed surfaces of the said flats are being ground, and will first be described with reference to the accompanying drawings,and then will be particularly pointed out and clearly defined in the claims at the close of this specification.

My present invention is designed as an improvement on that which is presented in my application for Letters Patent, filed April 28, 1892, Serial No. 431,112.

In the drawings, Figure 1 is a view in side elevation, with a part of the grinder-stand broken out to show parts behind the same, of sufficient of the grin ding mechanism of a traveling-flat carding-engine to illustrate the character and relations of my invention, the said invention being represented as embodied in the devices which are shown in the said View. Fig. 2 is a view, mainly in section, on the line a b of Fig. 1, showing certain parts which are represented in the latter figure. Fig. 3 is a view in side elevation of certain devices which are shown in Fig. 1, but with the grinder-stand and support for the milled seat removed, this View showing, also, part of the grinding-cylinder and part of the endless chain of traveling flats. Figs. 4 to 11, inclusive, are views in detail hereinafter referred to, in part showing modifications.

In the drawings I have shown only the devices which are employed at one side of a carding-engine;but it will be understood that the devices represented in Figs. 1 and 2 will be duplicated, one set thereof being placed at each side of a carding-engine, as usual.

At 70 is represented the upper portion of a grinder-bracket. The said bracket in practice is suitably mounted in known and desired manner upon the framing of a cardingengine.

At 71 is represented the grinder-stand, which at its upper end is formed with a bearing 713 for one journal of the grinding-roller 6 5 10, the said roller being shown in part in Fig. 3. The outer face of the grinder-bracket is formed with slideways 704,(see Fig. 3,) to which are fitted corresponding portions on the grinder-stand, the said stand being held in place against the said bracket by clamp-screw 705 and its nut 7052 and washer 7053 and being adjusted lengthwise thereon by the adjusting-screw 7 08, all as usual.

At 73 is shown the milled seat, against the 75 under face of which the working faces at the ends of the flats successively are pressed as the said ends of the flats come successively between the said face and the upper surface of the inner arm of the presser-lever 11, the rear arm of this lever being provided with a weight 112, as heretofore, the said weight being shown in Fig. 1.

At 701 is an inclined surface forming a guide, along the top of which the backs of the ends of the flats slide as they approach and pass the grinding-roller. This guidingsurface is at the upper edge of a vertical web 706, forming part of the bracket 70, and is shown located immediatelybeneath the outer o lateral half of the milled seat 73, the weighted lever 11 being located at a point between the said guide 701 and the middle of the cardingengine, so as to cause its inner arm to support the flats at a pointintermediate the mid- 5 die of each flat and one end thereof.

At 12 is a hook or latch, which is pivoted on the stud 74, projecting from the web 706, and which may be engaged with the pin 111, carried by the rear or outer arm of the lever :00 11 whenever it is desired to retain the said rear or outer arm elevated and the inner arm depressed. As heretofore,.the under face of the milled seat 73, along which the working faces of the flats travel, is formed with two different surfaces 733 and 7 34: and a connecting-incline 735, these operating in known manner to secure the grinding of the face of the wire of each of the flats with the proper inclinerelatively to the working surface at the ends of the flat. The upper surface of the said seat is formed as shown, so as to permit of the unobstructed endwise traverse of the grinding-roll over the said upper surface to such an extent that the wires at the extreme ends of the flatsshall be ground uniformly with those on the other portions of the flats and as perfectly on the said extreme ends of the flats as those on any other portions thereof.

The milled seat 73 is held to the bracket by means which will now be described. The said seat is fastened to the side of the seatsupport 72 by clamping-screws 731, passing through holes in upwardly-extendinglugs 725 of the seat-support and into the seat, and in turn the said seat-support 72 is clamped to the vertical web 706 of the bracket 70 by studs 707 and their washers 7071 and nuts 7072. Preferably the studs 707 are formed separate from the web 706 and provided with screwt-hreaded portions which fit correspondinglythreaded holes in the web. The outer ends of the said studs are threaded for the reception of the nuts 7072. The studs 707 pass through holes 721 in the seat-support, these holes being somewhat largerin each direction 7 than the studs, so as to permit the seat-support to be moved on a vertical surface of the web 7 O6 to a slight extent in any direction in a vertical plane Without obstruction.

For the purpose of fixing the said seat-sup port accurately in the desired position of adjustment upon the bracket I employ setting devices which act against the said studs. These setting devices are formed, preferably, as screws 722, fitted to threaded holes in the seat-support and hearing at their inner ends against the sides of the studs 7 07. In the modification shown in Fig. 1 and also in Figs.

4 to 7 of the drawings I have shown three screws 722 employed in connection with each stud. One of these screws is horizontal and takes against the stud at one side horizontally of its center. The other two take bearing against the stud on opposite sides vertically of its center. The horizontal screw at one end of the seat-support and the corresponding screw at the opposite end thereof form a pair acting in opposite directions. The obj ect of this construction a'ndof the'described arrangement of parts is to make it convenient to adjust the milled seats at both sides of the carding-engine into their proper position relative to each other and to other parts, so as that each flat when parallel to the axis of the main cylinder and being ground shall be acted upon by the grinding-roll on a line which is parallel to the axis of the main cylinder.

This action will be securedif when a'straight line parallel to the axis of the main cylinder touches one of the milled seats at any p,osi tion it will also touch in the position precisely corresponding the milled seat upon the opposite side of the carding-engine. In some cases I may dispense with the uppermost vertical screws and depend upon force closure applied through the presser-lever l1 and the flat to take their places, and thereby leave the arrangement of screws 7 22 as shown in Figs. 8 to 11.

In securing the proper relative position of the milled seats upon the opposite sides of the carding-engine the grinder-bracket on one side of the carding-engine first is placed with great but not absolute precision opposite to the grinder-bracket upon the opposite side of the carding-engine and is adjusted to correspond with it in height by devices comprising slideways, adjusting-screws, and clamping-screws, all such as ordinarily are used for the purpose of adjusting the brackets upon the sides of carding-engines. The grinderbrackets are thus found to be opposite each other, although not with absolute precision.

Now upon loosening the nuts 7072 and turning the screws 7 22, as may be required and in the necessary direction, each milled seat may be located with great exactness and close pre cision just where it is desired to have it.

I do not herein lay claim, broadly, to a construction which holds the seat-support to the grinder-bracket and provides for its adj ustment thereon universally in a vertical plane;

nor doI claim herein the grinder-stand hav-s ing therein the sighthole, for these things have been claimed by me in my application for patent aforesaid.

I claim as my invention- 1. The combination, with the grinder-roll, the grinder-bracket, studs projecting from the said bracket having threaded outer ends, the milled seat with its surface, against which the working faces of the ends of the flats bear successively during the grinding operation, the seat-support having holes 721, through which the said studs project, and which holes are larger in every direction than the studs to permit of universal adjustment of the seatsupport upon the bracket, and the nuts on the outer threaded ends of the said studs, whereby the seat-support may be held clamped to the bracket in the desired position of adjustment, of devices acting against said studs, whereby the desired position of the seat-support and milled seat may be fixed, substantially as described.

' 2; The c'ombination','with the grinder-roll, the grinder-bracket, studs projecting from the said bracket having threaded outer ends,

permit of universal adjustment of the seatsupport upon the bracket, and nuts on the outer threaded ends of the said studs, whereby the seat-support may be held clamped to the bracket in the desired position of adjustment, of screws passing through the seat-support and taking bearings by their inner ends against the sides of the said studs for fixing the desired position of the seat-supportand milled seat, substantially as described.

3. The combination, with the grinder-roll, the grinder-bracket, studs projecting from the said bracket having threaded outer ends, the milled seat with its surface, against which the working faces of the ends of the flats bear successively during the grinding operation, the seat-support having holes 721, through which the said studs project, and which holes are larger in every direction than the studs to WILLIAM PITT CANNING.

Witnesses:

CHAS. F. RANDALL, HENRY OALvER. 

